Swivel nipple



FIG. 1 is a top, front, and right side perspective view of a swivelnipple showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a top, front, and right side perspective view thereof, showinga portion of the nipple rotated.

The ornamental design for swivel nipple, as shown and described.